Friday, June 1, 2012

Legionella exposure from compost

BBC news reporter Eleanor Bradford provides a report on legionella exposure to gardener's working with composts. The organism Legionella longbeachae has cause illness and at least one fatality in Great Britain.  Heating the compost to greater than 60C for 48 hours is supposed to kill the organism.

Persons working with compost are told to wash their hands after working with the compost and before consuming food. 

Given the high fungal count of compost material, it may also be prudent to wear an N-95 respirator around the material.  Large compost piles often have high levels of Aspergillus fumigatus.  The most common causitive agent of Aspergillosis.

Aspergillus fumigatus - photo N. Carlson
 

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